Radio Shack Color Graphics Option User manual

Model 2888
Color Graphics Option Kit
Installation Instructions
CAT.
NO. 26-5141

Introduction
Welcome to the world of color graphics. By adding the Color Graph-
ics Option Kit to your Monochrome Graphics Option Board (Catalog
#26-5140), you can use the full range
of colors provided by your
color monitor (Catalog #26-5112). This kit provides 640 x 400 points
in 15 colors, 8 of which may be displayed simultaneously.
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,

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Installation
We highly recommend that you have the Color Graphics Option
Kit installed
by the service technicians at your Radio Shack Ser-
vice Center. Doing so not only ensures expert installation, but also
enables the technicians to quickly check
to make sure all the equip-
ment is functioning properly.
If, however, you do decide to install the kit yourself, follow these
steps exactly:
1. Warning: Turn off a11 equipment. If it is on, you could dam-
age the central processing unit,
as well as your Monochrome
Graphics Option Board.
2. To avoid possible static charge buildup, touch a metal object to
ground yourself before you begin.
3. If you have already installed the monochrome board, unlock it
by pulling the lock buttons; then carefully remove it.
4. The Color Graphics Option Kit consists
of the following parts:
• Eight TMS4416-15 RAMs
• Four 74F245 chips
• Four 25LS22 chips
The monochrome board contains an empty socket
for each part.
On each slip is a notch or circle indicating Pin 1. When insert-
ing the chips, make sure the Pin 1 indicator lines up with the
notch outline on the board.
(If you insert the chip incorrectly,
you will destroy the board.)
Insert the chips in the empty sockets,
as listed here:
• TMS4416-15 RAMs at Locations U2-U9
• 74F245 chips at Locations U40, U41, U43, and U44
• 25LS22 chips at Locations U20, U38, U22, and U24
(See the illustration on the following page.)
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0.
4
...
...
...
...
, ..
, ..
...
...
...
...
...
, ..
...
, ..
...
1
\
I
~

5. Using an X-AC10® knife or other sharp cutting tool, cut Link
#1, which is near Location U62. Be careful; leave all other
links uncut. (See the illustration below.)
RP5 RP5
0---00 0----00
0----03 0----C3
0---05
0---05
0---04
0---04
0---02
0---02
U62
o--01
U62
0- -01
Before After
6. Insert the upgraded board into the main unit. (If you have not
done this before, see the instruction sheet provided with the
Monochrome Graphics Option Board.)
7a. Users with
Floor Stand (Catalog #26-5116): An Auxiliary
Keyboard and Video Cable is provided with the Floor Stand.
Connect that cable from the monitor to the main unit as de-
scribed
in the Floor Stand Owner's Manual. Then connect the
Monitor Power Cord as described in Introduction to the Model
2(/)Q)(/).
7b. Users without Floor Stand: Connect the Monitor Signal Cable
and Monitor Power Cord from the monitor to the main unit as
described in Introduction to the Model
2(/)(/)(/).
You can now use color graphics on your Model 2000. For information
on
how to program color graphics using BASIC, read "Introduction to
Graphics" in Model 2(/)(/)(/) BASIC Reference'.
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874-950314-84